They say that Jamie Hyneman wears Julbo Drus sunglasses in Mythbusters. The main features of it are removable side shields, wraparound style and adjustable entips. You could go to the online store to have a search. Usually the big brand sunglasses may be just owned by limited online store. You may go to the walmart to have a search. Wish you good luck.
Yes, this kind of glasses are very cool and also very popular. According to the Mythbusters Episode 82 page on the Discovery site ,we know that they are julbousa. They are very famous, the price is mainly distributed in the $100 to $200. In addition, even you want to wear sunglasses for action sports--whether you're tackling the trail, road or water, they are a good choice for you. If you are interested, you can click on the following page and have a look. http://www.julbousa.com/performance/
Well, as a matter of fact, the glasses Jamie Hyneman wears is called oval shaped sunglasses. Personally speaking, not everyone is suited to wearing such kind of sunglasses, it totally depends on your style and facial structure as well as your haircut. In order to acquire what you look for, you should try to visit some shopping malls where a lot of glasses stores gather round.